<?php
/**
 * Zend Framework
 * LICENSE
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 * @category Zend
 * @package Zend_Form
 * @subpackage Decorator
 * @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
 * @license http://framework.zend.com/license/new-bsd New BSD License
 */
/**
 * Zend_Form_Decorator_Abstract
 */
require_once 'Zend/Form/Decorator/Abstract.php';

/**
 * Zend_Form_Decorator_Errors
 * Any options passed will be used as HTML attributes of the ul tag for the errors.
 * @category Zend
 * @package Zend_Form
 * @subpackage Decorator
 * @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
 * @license http://framework.zend.com/license/new-bsd New BSD License
 * @version $Id: Errors.php 25253 2013-02-12 14:09:16Z frosch $
 */
class Zend_Form_Decorator_Errors extends Zend_Form_Decorator_Abstract {

    /**
     * Render errors
     * @param string $content
     * @return string
     */
    public function render ($content) {
        $element = $this -> getElement ();
        $view = $element -> getView ();
        if (null === $view) {
            return $content;
        }
        // Get error messages
        if ($element instanceof Zend_Form && null !== $element -> getElementsBelongTo ()) {
            $errors = $element -> getMessages (null, true);
        } else {
            $errors = $element -> getMessages ();
        }
        if (empty ($errors)) {
            return $content;
        }
        $separator = $this -> getSeparator ();
        $placement = $this -> getPlacement ();
        $errors = $view -> formErrors ($errors, $this -> getOptions ());
        switch ($placement) {
            case self::APPEND :
                return $content . $separator . $errors;
            case self::PREPEND :
                return $errors . $separator . $content;
        }
    }

}
